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improve:点名算法

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优化概率模型
This commit is contained in:
CJKmkp
2025-11-29 16:58:40 +08:00
parent 094f1223d1
commit b8581b6368
3 changed files with 59 additions and 18 deletions
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Ink Canvas/Windows/NewStyleRollCallWindow.cs
+55 -14
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@@ -170,15 +170,15 @@ namespace Ink_Canvas
private static RollCallHistoryData historyData = null;
private static readonly object historyLock = new object();
private static int maxRecentHistory = 20;
private static double avoidanceWeight = 0.8; // 避免重复的权重
private const double FREQUENCY_WEIGHT = 0.2; // 频率平衡的权重
private static double avoidanceWeight = 0.8;
private const double FREQUENCY_WEIGHT = 0.2;
// 概率相关
private const double DEFAULT_PROBABILITY = 1.0; // 默认概率
private const double BASE_PROBABILITY_DECAY_FACTOR = 0.5; // 基础概率衰减因子
private const double MIN_PROBABILITY = 0.1; // 最小概率
private const double PROBABILITY_RECOVERY_RATE = 0.1; // 概率恢复速率
private const double FREQUENCY_BOOST_FACTOR = 0.5; // 频率平衡增强因子
private const double DEFAULT_PROBABILITY = 1.0;
private const double BASE_PROBABILITY_DECAY_FACTOR = 0.5;
private const double MIN_PROBABILITY = 0.01;
private const double PROBABILITY_RECOVERY_RATE = 0.2;
private const double FREQUENCY_BOOST_FACTOR = 2.0;
// 单次抽相关
private bool isSingleDrawMode = false;
@@ -692,13 +692,22 @@ namespace Ink_Canvas
// 计算频率差异比例
double frequencyRatio = nameFrequency / averageFrequency;
double boostFactor = FREQUENCY_BOOST_FACTOR * (1.0 - frequencyRatio);
double frequencyGap = 1.0 - frequencyRatio;
double boostFactor = FREQUENCY_BOOST_FACTOR * frequencyGap * frequencyGap;
// 增加概率
double boostedProbability = baseProbability * (1.0 + boostFactor);
// 限制最大概率，避免过高
return Math.Min(boostedProbability, DEFAULT_PROBABILITY * 2.0);
return Math.Min(boostedProbability, DEFAULT_PROBABILITY * 10.0);
}
else if (nameFrequency > averageFrequency)
{
double frequencyRatio = nameFrequency / averageFrequency;
double reductionFactor = 1.0 - (frequencyRatio - 1.0) * 0.3;
reductionFactor = Math.Max(reductionFactor, MIN_PROBABILITY / DEFAULT_PROBABILITY);
return baseProbability * reductionFactor;
}
return baseProbability;
@@ -746,17 +755,28 @@ namespace Ink_Canvas
{
// 计算频率差异比例
double frequencyRatio = nameFrequency / averageFrequency;
double boostFactor = FREQUENCY_BOOST_FACTOR * (1.0 - frequencyRatio);
double frequencyGap = 1.0 - frequencyRatio;
double boostFactor = FREQUENCY_BOOST_FACTOR * frequencyGap * frequencyGap;
// 增加概率
double boostedProbability = currentProbability * (1.0 + boostFactor);
// 限制最大概率，避免过高
boostedProbability = Math.Min(boostedProbability, DEFAULT_PROBABILITY * 2.0);
boostedProbability = Math.Min(boostedProbability, DEFAULT_PROBABILITY * 10.0);
// 保存更新后的概率
historyData.NameProbabilities[name] = boostedProbability;
}
else if (nameFrequency > averageFrequency)
{
double frequencyRatio = nameFrequency / averageFrequency;
double reductionFactor = 1.0 - (frequencyRatio - 1.0) * 0.3;
reductionFactor = Math.Max(reductionFactor, MIN_PROBABILITY / DEFAULT_PROBABILITY);
double reducedProbability = currentProbability * reductionFactor;
historyData.NameProbabilities[name] = reducedProbability;
}
}
}
@@ -893,8 +913,29 @@ namespace Ink_Canvas
// 降重：被选中的人员概率降低
double currentProbability = GetNameProbability(name);
double decayFactor = BASE_PROBABILITY_DECAY_FACTOR * (1.0 + avoidanceWeight);
decayFactor = Math.Min(decayFactor, 0.95);
double frequencyBasedDecay = 1.0;
if (historyData.NameFrequency != null && historyData.NameFrequency.ContainsKey(name))
{
int totalSelections = historyData.NameFrequency.Values.Sum();
if (totalSelections > 0)
{
int uniqueNamesCount = historyData.NameFrequency.Keys.Count;
if (uniqueNamesCount > 0)
{
double nameFrequency = (double)historyData.NameFrequency[name] / totalSelections;
double averageFrequency = 1.0 / uniqueNamesCount;
if (nameFrequency > averageFrequency)
{
double frequencyRatio = nameFrequency / averageFrequency;
frequencyBasedDecay = 1.0 - (frequencyRatio - 1.0) * 0.2;
}
}
}
}
double decayFactor = BASE_PROBABILITY_DECAY_FACTOR * (1.0 + avoidanceWeight) * frequencyBasedDecay;
decayFactor = Math.Min(decayFactor, 0.85);
double newProbability = currentProbability * decayFactor;
newProbability = Math.Max(newProbability, MIN_PROBABILITY); // 确保不低于最小概率